Such arguments do not obviously extend to diffusiophoresis. The main physical reason is that diffusiophoresis involves the balance of viscous shearing with an osmotic pressure gradient acting in the diffuse layer along the particle surface  [1]}.
While such a balance is simple and appealing, it led to various mis-interpretations and debates concerning osmotically-driven transport of particles [2]}, [3]}, [4]}, [5]}, [6]}, [7]}, also in the context of phoretic self-propulsion [8]}. A naive interpretation of diffusiophoresis is that the particle velocity \(v_{DP}\)  results from the balance of Stokes' viscous force \(F_v=6\pi \eta R v_{DP}\)  and the osmotic force resulting from the osmotic pressure gradient integrated over the particle surface. The latter scales hypothetically as \(F_{osm} \sim R^2\times R\nabla \Pi \) , with \(\Pi = k_BT c_\infty \)  the osmotic pressure. Balancing the two forces, one predicts a phoretic velocity behaving as \(v_{DP} \sim R^2 \frac{k_BT}{\eta } \nabla c_\infty \) . Looking at the expression for the diffusiophoretic mobility in the thin layer limit, Eqs. (REF ) and (REF ), the latter argument does not match the previous estimate by a factor of order \((R/\lambda )^2\) , where \(\lambda \)  is the range of the potential of interaction between the solute and the particle.
The reason why such a global force balance argument fails is that flows and interactions in interfacial transport occur typically over the thickness of the diffuse layer, in contradiction with the naive estimate above.
